They likely censored out that airport level that the russians seemed to be so annoyed about.
You know, if the levels of when the Russians came to attack America had actually included American civilians getting mowed down by Russians like at the airport with Russians being mowed down by an American [which is the intended effect], Modern Warfare 2 would of been banned here in the United States so fast, that you would be complaining about it getting banned here before it was even released, like they did Six Days in Fallujah which didn't even involve mowing down civi's in America.